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A modulated monochrome signal whose side-bands convey color information.
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∙ 12y ago
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Can an analog tv receive a digital cable signal?
using two subcarriers and a main carrier signalaudio subcarrier is frequency modulated with audiocolor subcarrier is phase modulated with chromamain carrier is amplitude modulated with sum of video and modulated audio subcarrier & color subcarrier; then lower sideband is suppressed by a filter.closed captions are serial ASCII encoded characters embedded in vertical blanking of video signal
What is a subcarrier oscillator?
what is sub carrier oscillator?
How do you convert cellphone gsm frequency to another gsm frequency?
How do you convert cellphone gsm frequency to another gsm frequency?"
The amount of frequency deviation for a frequency-modulated signal is determined by the?
The signals frequency directly.
How do you convert low frequency to high frequency with a circuit?
You typically create a DC power supply from the low frequency, and use that to run a high frequency oscillator and amplifier. If there needs to be a relationship between frequency in and frequency out, often there is a divider running on the high frequency side in combination with a phase locked loop synching up to the low frequency side.
Can an analog tv receive a digital cable signal?
using two subcarriers and a main carrier signalaudio subcarrier is frequency modulated with audiocolor subcarrier is phase modulated with chromamain carrier is amplitude modulated with sum of video and modulated audio subcarrier & color subcarrier; then lower sideband is suppressed by a filter.closed captions are serial ASCII encoded characters embedded in vertical blanking of video signal
In FM transmitter the rate of frequency swing is determined by the?
The frequency with which the carrier frequency is deviated is exactly the modulating frequency, i.e. the frequency of the sound that makes up the music or voice announcement, stereo pilot, SCA subcarrier, etc.
What is red green and blue mixed together in the same computer signal LED composite video?
Composite video is an "older" type of video signalling allowing all the information to be transmitted on a single coaxial cable or radio frequency carrier. It is a combination of amplitude modulation with phase modulation of a common color subcarrier frequency. The brightness is coded in the amplitude of that subcarrier and the color is coded in the phase of that subcarrier: red is one phase (e.g. 0 degrees), green is a phase 120 degrees away from red (e.g. 120 degrees), and blue is a phase 120 degrees away from green (e.g. 240 degrees). Composite video also requires a color burst during every horizontal sync period to provide a phase reference to prevent color drifting over time. It is not clear from your question what combination of red, green, and blue you are describing. If the red, green, and blue magnitudes are identical (producing white) then the color subcarrier turns off and the brightness of the white is simply a "baseband" black & white signal (possibly even just a DC voltage). But if any color is to be produced the color subcarrier turns on with a phase somewhere from 0 degrees to 360 degrees, with each phase angle being a different color on the spectrum from red to violet (just like seen in a rainbow). Very few computer monitors use this system due to limited color resolution and thus poor display quality on larger screens.
Does color have a frequency?
Yes. It is correct to say that color has frequency.
What is a subcarrier oscillator?
what is sub carrier oscillator?
What is the frequency of color?
Every color has a different frequency. That's why it appears to our eyes as a different color.
The color of the light is determined by its?
Wavelength, or alternatively its frequency.
What determines the frequency ( color ) of photons?
Frequency determines color. Frequency is determined by the origin of the photon, i.e. emitted from an excited atom.
What does frequency control in light?
Frequency controls the color of the light.
How can you tell the energy released based on the color of the light?
The frequency of the light is the color and the energy is E=hf or Planck's Constant times the color or frequency.
Does frequency of color have any relations to the frequency of sound?
you are wasting out of time
What do you observe with the wave length and frequency of the different color?
Wave length and frequency affect color in a great way. If wavelength is short it is a cool color, if it is long it is a hot color.
